1.  Charles V

Charles V was called the wise & was king of France from 1364 to his death and a member of the House of Valois.

Charles V became a monk after he split the Hapsburg empire into two and gave ONE PART TO his sons AND THE OTHER TO HIS BROTHER. - TFLYNN

Charles V was involved in constant warfare. He fought protestants in Germany and France over Italy. Also, he fought the Ottoman Empire under Suleiman.

Charles V joined a monastery.

Charles V was ruler of Holy Roman Empire

As Holy Roman Emperor, he called Martin Luther to the Diet of Worms in 1521\

His son is Philip II

His reign in Spain lasted from 1506-1556.

Charles is best known for his role in opposing the Protestant Reformation